For compatiblity reasons its best to use your own bios and if you edit bios correcting the checksum is something you would have to manually do. The tool is a great calculator. In bios if you flash or edit the whole table just above the table there is the max voltage. You might have to enter bios and raise this anyways i dont think this tool uncaps voltage, just raises ASIC values. Its a good start.

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Does not work on my card. Power limit raises. But voltage nah nah, not even the bar.

Attached Files:

I have a Asus Ares 2 gpu card with a 660 gtx. GPU tweak tool doesn't allow multiple graphics cards to be installed. So it only detects the 660, so i am unable to adjust the asus ares 2. Also msi afterburner only allows for a maximum of 1.3v. So there is no way for me to add 1.4v since i have a hybrid system.

I guess the only hope i have is for someone to modify the ares 2 bios. Please! can someone do it? all i need is to be able to go to 1.4v. my temps are amazing staying at 45c at 100 percent load at 1.3v.

Will support for the HD 7790 series be added? The tool can't find the voltage table in my BIOS or any other 7790 BIOS I've tested. Does work with the other variants though.
I really want to be able to increase my GPU's power limit to see how high I can push the card.

After yet more pissing about with my 7950 Vapor-X I can say with 100% certainty that the vBIOS for it has been intentionally crippled, at least for Vapor-X 7950s that have 2x 8+8 pin connections.

Here are the results:

7950 Vapor-X vBIOS 15.25.99: 1100MHz @ 1.15v, 1425MHz 1.5v vmem (ironically the memory is rated for 1500MHz so should at least be doing that even with the stock vBIOS)

7970 Vapor-X vBIOS 15.22.01: 1250MHz @ 1.15v, 1500MHz 1.5v vmem.

There we have it, if you have a Vapor-X 7950 with 2x 8+8 pin connections put the 7970 Vapor-X vBIOS on it to uncripple it. Lets have a round of applause for the imbeciles at Sapphire who can't put the correct vBIOS on their 8+8 pin Vapor-X 7950s.

manualmanual about frequencies editing (somehow I can't translate it with google translate, try at your own if needed).

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I have found the very best way to translate this to English Accurately. Use Good ole' IE, load the page..... locate a spot on the page, and right click....then go to "translate with Bing", viola' Problem solved! Worked perfectly for me..

Matthew

EDIT--- Translation below:

16.05.2013 22:06

How to edit the frequency and to change the limit increase frequencies in the AMD Radeon bios HD7 series.

Despite the fact that the way to challenge the Radeon bios frequency did not change for several generations and has long been available on the Internet, by popular request, describe it again.

Radeon graphics cards can work in a variety of modes: 2D, 3D, 3D Boost (not all maps) and more staging (for example, video playback).

The full list of shows for example AIDA64
---------------------------------------------------------------------------

Thus, if you want to change the frequency for a certain mode in the bios:

-know the value of the default frequencies

-translate them according to the above algorithm

-We are looking for a sequence of six bytes (3 bytes of kernel/3 bytes of memory)

-decide on what frequencies are to change

-translate them according to the above algorithm

-replace the bytes by default to those calculated

That's all as far as editing of frequencies. Personally, I have worked to edit 3D mode frequency, but here is a 2D mode frequency, somehow not diminished (voltage also did not want to be changed)

Now on the marginal frequencies acceleration.

As you know, default, the Radeon in the CCC limit increasing frequencies is heavily restricted. Often, this limit is smaller than the video card capabilities. This limit can be bypassed using the CCC, and not e.g. Sapphire Trixx where without any body movement can be set very high frequencies. Either one run MSI Afterburner with a key/xcl and after a reboot in the CCC will also exhibit very high frequencies.

And you can edit the bios since this limit is specified in it. It is a sequence of seven bytes:/3 bytes limit frequency cores/0000 (zero byte)/3 bytes of the memory frequency limit/

So to change the limit in the bios:

-learn in CCC limit frequency

-take the three byte values according to the above algorithm

-Search bios sequence of seven bytes (remember to add the 0000 in the middle)

-change at will (according to the algorithm)

For example, in my bios from HD 7770 limit was 1300/1300, I found a string of D0 FB 01 0000 D0 01 and replaced by FB 88 84 02 0000 AB 98 02 which gave the limit/1650 1750

My Gigabyte 7970 3GB OC can run the Ghz bios but fails on the elevated memory clock, not the core or core voltage increase, could this be fixed with a custom ghz bios that does the core 1100 @ 1.125 but stock memory and memory volts? My voltage is locked and I dont like having to reduce memory clock in CCC.

I have bought a brand new, MSI Radeon HD 7970 Twin Frzr OC/BE with an ASIC of 73.4. My question is off topic but you guys seem to know your stuff so I will ask... How can I liquid cool mine? On full load with fans wide open, it runs 70+C. Im not too shabby with that... I have saw others using Corsair H80i, BUT...What about the RAM modules? No cooling other than air? I dont think so... seems to me they will short out before long this way. this is my setup

This plate, is that already on the card? I can't remember... I put it back in the wrapper and box till my PSU from Corsair gets here.... Ordered the 760i. I could, take one of the Cougar 120x120x25mm PWM fans, and set it where it blows air across that plate in conjunction with the H80i should I choose it. What do you think? I do like how the twin Frzr looks though.. :| tough decision.... Look at this PSU I have ordered and then the fan:

As I asked, does the version of the 7970 card I got, have that plate already from factory? If so, I suppose it acts as a heat-sink for the RAM.. I could use one of these fans tied into the corsair link software and moderate it..... OR plug it into the PWM fan connector and use it through either CCC or MSI's control center with my own fan profile. This fan moves just about as much air as the fans on the TwinFrzr, but it is quieter... What is your opinion of this type of build? YES... It's my lil' ole' Frankenputer.... lol

OH YEA.... What is the very best or atleast top 3 Thermal Paste manufactures? I want nothing but the right stuff, even if it's 100 bux for 3-5 applications. I will only do this stuff right, as you really have one good chance without F$*#(ng stuff up. Thanks a whole whole whole bunch guys. The info I find in these forums for the most part is top grade and dead on.

YES the back plate is on the card. see Earthdog's review the H80i would be the best choice because of the Corsair Link Software, use it myself. BUT you will need a bracket to mount the cooler to card. I use these & they work Great. But dwood the operator of TripT Computer Customs has not been around see here for some time (june 13/13). As noted in the link post 136 the Cooler Master Seidon 120XL should bolt through the gpu cooler mounts[ see pic #3 here with the TwinFrzr removed you could then use one of the cougar fans to cool the plate. for thermal paste GELID GC-Extreme
good luck

Hi, I have a Tahit XFX 7870 CDFC, and I want to undervolt the card, but this is a volting-lock vga, and the 3rd part softwares has no effect. So I want to change the core voltage-borders from 0.95V - 1.15V to lower, 0.8V - 1.05V values, with +20% power limit.
The editor says, this card is non reference, so I cannot change the voltages.
Somebody would make for me a custom bios from mine and send me, or maybe help me what to do?
I read about hexa-editor methods, but I dont want to try that on my own, and I havent found any other solution yet..

Hi, I have a Tahit XFX 7870 CDFC, and I want to undervolt the card, but this is a volting-lock vga, and the 3rd part softwares has no effect. So I want to change the core voltage-borders from 0.95V - 1.15V to lower, 0.8V - 1.05V values, with +20% power limit.
The editor says, this card is non reference, so I cannot change the voltages.
Somebody would make for me a custom bios from mine and send me, or maybe help me what to do?
I read about hexa-editor methods, but I dont want to try that on my own, and I havent found any other solution yet..

(My saved bios-rom is in the attached file, ASIC quality is 84,8%)

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A 2-3 version old saphire trixx gave me voltage control on a xfx 7850 2gb. Try that.

YES the back plate is on the card. see Earthdog's review the H80i would be the best choice because of the Corsair Link Software, use it myself. BUT you will need a bracket to mount the cooler to card. I use these & they work Great. But dwood the operator of TripT Computer Customs has not been around see here for some time (june 13/13). As noted in the link post 136 the Cooler Master Seidon 120XL should bolt through the gpu cooler mounts[ see pic #3 here with the TwinFrzr removed you could then use one of the cougar fans to cool the plate. for thermal paste GELID GC-Extreme
good luck

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Thanks for the reply:

I didn't even know you'd replied till today. I went out and bought the XPCS AX?120mm Rad, DTec g1/4 threads-3/8-3/8 fittings, I am looking at http://www.sidewindercomputers.com/x2o750du5bay.html this for my pump, and I bought the old style waterblock for the 7970; The new style is badd ass, but I want the old style; I am gonna build something a little different. I want something that is going to allow me to keep my fans on the card, so this block, will allow me to reattach them: http://www.ebay.com/itm/XSPC-7970-RAZOR-AMD-7970-Radeon-Waterblock-Water-Cooling-RZR7970-/271253730159?pt=US_Video_Card_GPU_Cooling&hash=item3f27fb736f Also, it was like 35-40 bux cheaper than the new one...This block looks great, and they discontinued it to use the new style.. I looked everywhere for 4 days trying to get one, and I actually did on ebay... go check it out. Now, I've already got some high pressure tubing at home that will work just fine. Oh yea, I gotta tell ya.. The 760i is onee baddddd ass power supply. I highly, highly recommend it. Very cool, quiet, and its got the power.. ummppphh!!

Support for Hd6670/7670 would be nice.Those bioses should be more simple than high end cards. I would like to rename my 6670 to 7670(Same card) and flash the clocks from 800/4000 to 900/4600. The clocks part more important.(Dont like to run overclocking software all the time!)

It is easy to reflash and actualy theres no risk! I have used rbe and nibitor on over ten cards and all with success. No cards damaged. If new bios does not work,i just reflash. Use pci graphics or igp as primary vga and reflash. Flashed my ti4200 with rayadams bios editor over ten years ago. I like my overclock permanent!

Only ignorant people kill their cards.I could flash a nvidia bios on the card and still revive it or even erase all the rom and still revive it.There have been exceptions but who knows why(Maybe ignorants) I like to mod to the fullest and am happy to take the risks. Thats the best bart anyway

I could flash a nvidia bios on the card and still revive it or even erase all the rom and still revive it.

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There are PLENTY of exceptions. While generally if editing the bios or flashing one of the same model with higher clocks (factory overclocked) things tend to work out. But make no mistake about it sir, there are risks with flashing cards. Good luck with your rename and flash!

There are PLENTY of exceptions. While generally if editing the bios or flashing one of the same model with higher clocks (factory overclocked) things tend to work out. But make no mistake about it sir, there are risks with flashing cards. Good luck with your rename and flash!

sorry for my English.
I have a gigabyte hd 7850 oc. GV-R785OC-2GD no reference
I have the gpu voltage to 1.25v to 1150 hz.
I know I can go more.
How I can pass the limit of 1.25v?.
radeon bios editor does not work.
Thank you.